DDD borrowed $300,000 at 10% to fund the construction of a specialized piece of equipment. DDD has 1,000,000 bonds outstanding at 8%.

DDD made the following expenditures on the dates below:

1/1/2019	$ 300,000
4/1/2019	$ 200,000
7/1/2019	$ 100,000
10/1/2019	$ 200,000

The equipment was finished and ready for use on 10/1/2019.

What is the weighted average accumulated expenditure related to the construction of this piece of equipment?

What is the avoidable interest?

What is the total cost of the equipment?